October 25, 2014 
An error code will be displayed on your washing machine or washer/dryer if the machine has a problem. Error codes will be displayed on your machine in one of two ways: Either on your digital display screen which will show an error code in a letter followed by two numbers format, Or washing machines without digital display it will show a series of flashing lights.
There are different ways that these are displayed so you will need to consult your manual on these or let us know your full model number with the fault sequence and we will try and help you.
These lights when flashing should be read in a binary fashion, these are the typical Hotpoint, Ariston, Indesit & Creda error codes or fault codes for washing machines and dryers.
Now there may be some variances for older models, but there are 3 main types of board listed so you need to know what you are looking for. This video is on How to Repair Washing Machine Flashing Lights.